Antitoxin
Pronunciation : An`ti*tox"in
Part of Speech : An`ti*tox"ine
Etymology : [Pref. anti- + toxin.]
Definition : Defn: A substance (sometimes the product of a specific micro-organism and sometimes naturally present in the blood or tissues of an animal), capable of producing immunity from certain diseases, or of counteracting the poisonous effects of pathogenic bacteria.
Source : Webster's Unabridged Dictionary, 1913